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Indexing Plungers - Knobless, Compact
The most suitable knob for each purpose can be mounted
Whether you're working on a project that requires precise indexing or need a reliable locking mechanism, our indexing plungers are the perfect solution. They are available in a range of styles and sizes to suit your specific needs. Plus, our expert team is always on hand to offer advice and supportPackaging & Shipping
1.How long is your delivery time?
Generally our delivery time is 15 to 30 days . But different products and quantities have different procedures andtiming.we promise that we'll try our best to finish your orders within the shortest time.For more information, pleasecontact us.
2.ls the MOQ fixed?
For most orders,the MOQ can't be lowered according to the required quantities.For stock items,the quantities canbe negotiated.
3.What is the Surface Treatment?
Galvanized, Yellow zinc plated,H DG.
4.What is your material?
stainless steel and carbon steel .It also can according to your requirements.
5.Where is the port of shipment?
FOB:Shenzhen or HongKong.
6.What are your terms of payment?
PAYMENT BY T/T IN ADVANCE , West union,Paypal and etc.
7.Are customized products accepted?
You idea and imagine,we design and make.lt is fully self-customized.
8.Any discount possible if l place an order?
Yes,we have different price ranges (discounts)according to your quantities.You can consult us anytime.
9.Shipping
For samples or small order, can be delivered by express of DHL, UPS, FedEx,TNT, HKDC at the buyerconvenience, or by other express to save the buyer cost or shorten the transit time at the buyer request.& For mass order delivery, can be optional with terms of Ex-work, FOB by air or by sea based on the buyerforwarder or our recommended local forwarder at the buyer convenience.
To save the buyer shipping cost, we can also offer Chinese cheap cost from our local fonwarder for our buyer moreselections.






1.How long is your delivery time?
Generally our delivery time is 15 to 30 days . But different products and quantities have different procedures andtiming.we promise that we'll try our best to finish your orders within the shortest time.For more information, pleasecontact us.
2.ls the MOQ fixed?
For most orders,the MOQ can't be lowered according to the required quantities.For stock items,the quantities canbe negotiated.
3.What is the Surface Treatment?
Galvanized, Yellow zinc plated,H DG.
4.What is your material?
stainless steel and carbon steel .It also can according to your requirements.
5.Where is the port of shipment?
FOB:Shenzhen or HongKong.
6.What are your terms of payment?
PAYMENT BY T/T IN ADVANCE , West union,Paypal and etc.
7.Are customized products accepted?
You idea and imagine,we design and make.lt is fully self-customized.
8.Any discount possible if l place an order?
Yes,we have different price ranges (discounts)according to your quantities.You can consult us anytime.
9.Shipping
For samples or small order, can be delivered by express of DHL, UPS, FedEx,TNT, HKDC at the buyerconvenience, or by other express to save the buyer cost or shorten the transit time at the buyer request.& For mass order delivery, can be optional with terms of Ex-work, FOB by air or by sea based on the buyerforwarder or our recommended local forwarder at the buyer convenience.
To save the buyer shipping cost, we can also offer Chinese cheap cost from our local fonwarder for our buyer moreselections.
Frequently asked questions about this product (FAQ)
Can the knob plunger withstand radial force?
No, it can only withstand axial force.
What is the function of the ball plunger?
The stroke of the front end ball head is specified, which can be used for temporary positioning, indexing, and other purposes of the workpiece.
What is the function of the spring plunger?
The front end is pin shaped and can be used to eject workpieces or stop blocks.
What is the function of the knob plunger?
Knobs and handles can be used to manually move pins in and out, suitable for temporary positioning of workpieces.
What are the meanings of load min and max?
The load min represents the initial load value, and max represents the load value at the maximum pressure limit of the ball head.

TIME/VENUE:2026.3.31-4.3 Shenzhen International Conventionand Exhibition Center (Bao'an)BOOTH NO.3-P10
Indexing plungers are vital mechanical components used to secure, position, and lock movable parts in machinery, fixtures, jigs, and industrial equipment.
In precision machinery and industrial applications, choosing the right mechanical locking or positioning component is critical for reliability, safety, and efficiency. Two common devices used for positioning and locking are indexing plungers and ball lock pins.
Custom indexing plungers are essential components in specialized machinery, industrial equipment, and precision assemblies.
Indexing plungers are essential mechanical components used across various industries to ensure precise positioning, secure locking, and repeatable alignment in machinery, fixtures, jigs, and other adjustable assemblies.
Indexing plungers are essential components in mechanical assemblies, offering precise positioning, locking, and alignment capabilities. They are widely used in machinery, jigs, fixtures, and industrial equipment, where accurate positioning and repeatable movement are critical.
If an indexing plunger starts sticking, failing to seat, or wearing out early, replacing it might "solve" the symptom—but not the cause. Most field issues come from receiving-hole design, alignment stack-up, contamination, or side loading.
In harsh environments, "indexing plunger" is not the full spec. The real spec is: corrosion risk + cleaning method + contamination tolerance + maintenance reality. If you don't design around those, even a premium plunger will feel gritty, stick, or corrode before its expected service life.
"Load rating" sounds simple until a pin bends in the field and everyone asks why. Indexing plunger pins rarely fail from pure axial force. They fail because real assemblies introduce shear, bending, misalignment, and vibration—often all at once.
A standard indexing plunger is designed to re-engage automatically. That's great—until it isn't. In fast changeovers, rotating plates, or safety-critical adjustments, you may need the opposite behavior: the pin must stay retracted until the operator intentionally releases it.
When an indexing plunger "doesn't feel reliable," the issue is often not the plunger. It's the hole. Bore size, chamfer, and engagement depth decide whether the pin finds the target smoothly—or fights burrs, edge damage, and misalignment for the rest of its life.
Did you know that using the wrong set screw can cause permanent damage to delicate components? Whether you're working with polished aluminum, plastic housings, or precision assemblies, a traditional metal set screw might scratch, deform, or even crack your components.
What do medical devices, precision electronics, and high-end furniture have in common? They all require non-marring, precision fastening solutions—and nylon tip set screws are the go-to choice.Standard fasteners often cause more harm than good in delicate assemblies.
Did you know that a single fastener can determine whether your assembly lasts for years or fails within weeks? It's not always about the size or strength of the screw—it's about the application fit. In industries where surface integrity, vibration control, and precision are essential, the nylon tip set screw is often the unsung hero.
"One wrong screw can ruin your entire assembly." That's not an exaggeration—it's a reality many engineers and manufacturers face when choosing between different types of fasteners. Imagine tightening a set screw into a soft aluminum or plastic surface, only to find cracks, scratches, or permanent damage.
In many industries, fastening delicate components without causing surface damage is a constant challenge. That's where nylon tip set screws come in — a smart and reliable solution for non-marring, vibration-resistant fastening.
When you use a sliding door or open a drawer, you can feel the smooth stop and click. This comes from the ball head plunger and spring plunger inside. A high-quality ball head plunger uses strong materials like 304 stainless steel. This gives you better durability and protects against rust.
You use a plastic ball plunger to move parts gently. Material is important. POM and PA work for everyday jobs. PEEK is better for hot or tough places. Ball plungers keep electronics and molds safe. They protect soft surfaces.
Hygiene is very important in food processing. Every part, even a stainless steel ball plunger, must meet hygiene rules. Clean machines help keep food safe for people. Picking parts that resist germs and rust means you can trust your equipment for years.
You use spring ball plunger technology to get steady preload and close tolerances in your automation equipment. Spring-loaded plungers help you get exact positioning. This makes design and performance better.